Chang; Yi-Shun

Patent Applications and Registrations

Patent applications and USPTO patent grants for Chang; Yi-Shun.The latest application filed is for "illumination device, projection system and operation methods thereof".

Company Profile

0.7.6

Chang; Yi-Shun - Hsin-Chu TW
Chang; Yi-Shun - Kaohsiung N/A TW
CHANG; Yi-Shun - Kaohsiung City TW
Chang; Yi-Shun - Taipei TW

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Illumination device, projection system and operation methods thereof Grant 11,442,346 - Tsao , et al. September 13, 2	2022-09-13
Illumination system, projection device and color wheel calibrating method Grant 11,422,447 - Tsao , et al. August 23, 2	2022-08-23
Illumination Device, Projection System And Operation Methods Thereof App 20210165310 - Tsao; Yu-Sheng ; et al.	2021-06-03
Illumination System, Projection Device And Color Wheel Calibrating Method App 20210132484 - Tsao; Yu-Sheng ; et al.	2021-05-06
LED heat-conducting substrate and its thermal module Grant 8,803,183 - Chang , et al. August 12, 2	2014-08-12
Power switching device and method thereof, and projection device using the power switching device Grant 8,653,695 - Chang , et al. February 18, 2	2014-02-18
Piezoelectric Panel Speaker App 20120230524 - CHANG; Yi-Shun ; et al.	2012-09-13
Led Heat-conducting Substrate And Its Thermal Module App 20120092833 - Chang; Yi-Shun ; et al.	2012-04-19
Universal Serial Bus Connector And Adaptor Of The Connector App 20110244728 - CHANG; Yi-Shun ; et al.	2011-10-06
Power Switching Device And Method Thereof, And Projection Device Using The Power Switching Device App 20110127840 - Chang; Yi-Shun ; et al.	2011-06-02
Cooling system and method for a portable computer Grant 6,082,623 - Chang July 4, 2	2000-07-04

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